delete --no-auto-compile : useless in this case (MES doesn't compile)
delete -- : this starts an interactive scheme session (which is not the case here)
Generally, this is bad, because reduces featureset of kernel.
However, we don't use any blobbed features anyway.
1. This allows much lower RAM usage.
2. Speeds up deblobbing from hours -> seconds.
This nukes blobbed files instead of replacing blobs.
For further RAM savings, we want to create sysb -without- having linux
tarball extracted at the same time. To accomplish this, we move the
gen_init_cpio + related script out of the tree and create it afterward.
Also use hard links to free up some more space.
- The date reproducibility issue was not actually set to any date, which
could cause issues in the fiture, fix that sed.
- Fix a reproducibility issue (under QEMU), where the ordering of files
within libguile can be random. This also affects guile binary so we
need to rebuild that.
- Some change in kernel versions means that guile binary is
significantly different in newer kernel versions. Because we cannot
know the version of the host under chroot mode we must disable guile
checksum entirely.
- Update checksums accordingly.
- Add parts.rst documentation for Linux kernel.
- Completely fix problems caused by new bootstrap, update checksums for
/usr.
- Globalise populate_device_nodes.
- Enable deblobbing.
- We do not use latest 4.9.x because it relies on a new version of
binutils, while older versions do not. (Note: we should be able to go
a bit newer but I didn't bother testing >50 versions to figure this
out).
- We do not use newer kernel versions because they require one or more
of (new perl, new binutils, new make, new gcc, new bison, new tar).
- sysb and sysc are updated to use the SATA (libata) subsystem (aka sda)
instead of IDE-emulating SATA subsystem (aka hda) which is now
available to us.
- While theoretically according to docs 4.9 should work OOTB with our
version of binutils this is not the case, so we have to do a bit of
(interesting) patching. But this does not break anything.
- Thankfully serial support in 4.9 is not screwed over like it is in 2.6
so we can revert to that.
- 4.9 has the linux-libre project at our disposal, instead of gNewSense.
So we use this. Unfortunatley that takes forever because we have to
use sed because our version of gawk is too old/buggy. :( I plan to
introduce very shortly 1. parallelism 2. 'sysc snapshot' which will
start from sysc to avoid this. I do not want to use linux-libre
tarballs because they make modificiations directly from this script
(aka not easily verifiable, use the source!) and this script allows
for much greater flexibility.
- We compile the initramfs ahead-of-build using the in-tree cpio
generator instead of also building cpio to use less packages. We do
NOT build the initramfs into the kernel like 2.6 (unsupported).
- Oh and fix a kexec-tools checksum.
